RO60 1941
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| 第59号艦 [59-go], 11.1924- 呂60 [RO60] | Mitsubishi, Kobe | 12.1921 | 22.12.1922 | 9.1923 | wrecked 29.12.1941 | ||
| 第72号艦 [72-go], 11.1924- 呂61 [RO61] | Mitsubishi, Kobe | 6.1922 | 19.5.1923 | 2.1924 | sunk 31.8.1942 | ||
| 第73号艦 [73-go], 11.1924- 呂62 [RO62] | Mitsubishi, Kobe | 9.1922 | 19.9.1923 | 7.1924 | surrendered 8.1945, BU 1946 | ||
| 呂63 [RO63] (ex-第84号艦 [84-go]) | Mitsubishi, Kobe | 4.1923 | 24.1.1924 | 12.1924 | surrendered 8.1945, BU 1946 | ||
| 呂64 [RO64] (ex-第85号艦 [85-go]) | Mitsubishi, Kobe | 10.1923 | 19.8.1924 | 4.1925 | sunk 12.4.1945 | ||
| 呂65 [RO65] (ex-第86号艦 [86-go]) | Mitsubishi, Kobe | 11.1923 | 25.9.1925 | 6.1926 | sunk 4.11.1942 | ||
| 呂66 [RO66] | Mitsubishi, Kobe | 12.1925 | 25.10.1926 | 7.1927 | collision 17.12.1941 | ||
| 呂67 [RO67] | Mitsubishi, Kobe | 3.1925 | 18.3.1926 | 12.1926 | damaged 22.6.1945, never repaired | ||
| 呂68 [RO68] (ex-第87号艦 [87-go]) | Mitsubishi, Kobe | 2.1924 | 23.2.1925 | 10.1925 | surrendered 8.1945, BU 1946 |
|
Displacement standard, t |
988 |
|
Displacement normal, t |
996 / 1322 |
|
Length, m |
74.1 pp 76.2 oa |
|
Breadth, m |
7.38 |
|
Draught, m |
3.77 |
|
No of shafts |
2 |
|
Machinery |
2 Vickers diesels / 2 electric motors |
|
Power, h. p. |
2400 / 1600 |
|
Max speed, kts |
16.5 / 9 |
|
Fuel, t |
diesel oil 75 |
| Endurance, nm(kts) | 7000(10) / 85(4) |
| Armament |
1 x 1 - 76/40 88-shiki, 1 x 1 - 7.7/87, 6 - 533 TT (bow, 10) |
|
Complement |
47 - 60 |
|
Diving depth operational, m |
60 |
Project history: Vicker L(4) or (3 mod) type. Development of Vickers L(3), last Japanese licence-built submarines. They differed from predecessors by strengthened torpedo armament and also an arrangement of the gun, transferred from CT to a deck. Built under the 1921-1928 programme. Orders for No60 and 61 submarines were cancelled in 1921.
In 1942 RO62-64, 67 and 68 ere re-rated as training submarines.
Modernizations: none
Naval service: RO60 29.12.1941 ran ashore at northern end of Kwajalein, wrecked by a bad weather. RO61 was sunk 31.8.1942 at Atka (Aleutians) by US destroyer Reid and aircraft. RO65 ran ashore during evasion from attack of US aircraft 4.11.1942 at Kiska, later she was destroyed by aircraft. RO66 foundered 17.12.1941 after collision with RO62 N off Wake. RO64 was lost on a mine in Kobe area 12.4.1945.
RO62 was damaged 7.2.1942 at collision with RO61. RO67, under some data, 4.4.1945 was hard damaged on a mine in Internal Sea of Japan, 22.6.1945 she was hard damaged by US Army aircraft in Kure and stricken 20.7.1945.
RO68 1925
© Ivan Gogin, 2008-14